帮帮我这个新手

zyh0312

在建立拉伸实体时，怎样能更有效的将之前生成的拉伸平面消除呢？


                                                 本人刚刚开始学习，请各位师兄、师姐多多帮忙。

cbse_smy

你的意思有点不清楚，不知道是删除已拉伸好的实体，还是恢复操作。


若是前者可删除，是后者则加上以下语句：sendcommand "U "

zyh0312

Sub Example_AddRegion()
    ' This example creates a region from an arc and a line.
    
    Dim curves(0 To 1) As AcadEntity

    ' Define the arc
    Dim centerPoint(0 To 2) As Double
    Dim radius As Double
    Dim startAngle As Double
    Dim endAngle As Double
    centerPoint(0) = 5#: centerPoint(1) = 3#: centerPoint(2) = 0#
    radius = 2#
    startAngle = 0
    endAngle = 3.141592
    Set curves(0) = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngle, endAngle)
    
    ' Define the line
    Set curves(1) = ThisDrawing.ModelSpace.AddLine(curves(0).startPoint, curves(0).endPoint)
        
    ' Create the region
    Dim regionObj As Variant
    regionObj = ThisDrawing.ModelSpace.addregion(curves)

dim height as double
dim taperangle as double
height=3
taperangle=0

dim solidobj as acad3dsolid
set solidobj=thisdrawing.modelspace.addextrudedsolid(regionobj(0),height,taperangle)
zoomallEnd Sub

在上面在上面这个例子中，我们先建立了面域regionobj，然后将拉伸成三维实体，

但此时图形空间中还存在面域regionobj，这种情况下，我们如何将该面域删除。

                         谢谢帮助！！！

hillskysea

这么老的帖子我也把它顶起来，因为我也遇到这样的问题，期待高手解决